That's an excellent question! The backrest height on our standard outdoor benches is typically between 16 to 18 inches (approximately 40 to 45 cm) from the seat surface. This range isn't arbitrary; it's carefully designed to provide optimal lumbar support for most adults, promoting comfortable sitting for extended periods in parks, public walkways, or commercial spaces.
This height is engineered to support the natural curve of the lower back, which is crucial for comfort. A backrest that is too low fails to provide adequate support, while one that is too high can feel restrictive. The 16-18 inch standard offers a perfect balance, allowing for relaxation without sacrificing posture.
It's important to note that this measurement refers to the *supported* height. The total back structure, including any decorative top rail, may be taller for aesthetic or structural reasons. When selecting benches, consider this functional height alongside overall dimensions, seat depth, and materials to ensure they meet your specific needs for durability, style, and user comfort in any outdoor environment.